Also check out Where is Asteroid 7 Iris?,
a page that provides all the information needed to find Asteroid 7 Iris in the sky and additional links to sky charts.

Asteroid 7 Iris Distance

The distance of Asteroid 7 Iris from Earth is currently 545,380,663 kilometers,
equivalent to 3.645645 Astronomical Units.
Light takes
30 minutes and 19.1941 seconds to travel from Asteroid 7 Iris and arrive to us.

Distance Kilometers545,380,663

Distance AU3.645645

Light Travel Time30 minutes and 19.1941 seconds

The following chart shows the distance of Asteroid 7 Iris from Earth as a function of time.
In the chart the distance data is measured in Astronomical Units and sampled with
an interval of 1 day.

Distance of Asteroid 7 Iris from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth.
The value of the distance of 7 Iris from Earth is also available as a real time updated value in the
Live Position and Data Tracker.

Closest approach of Asteroid 7 Iris to Earth

Between January 2013 and December 2100 the closest approach of Asteroid 7 Iris to Earth happens on
Wed Nov 4 2076 at a distance of
0.84836878 Astronomical Units, or
126,914,163 kilometers:

DateWed Nov 4 2076

Distance Kilometers126,914,163

Distance AU0.848369

NOTE: values for the closest approach are computed
with a sampling interval of 1 day.

Asteroid 7 Iris brightness

The following chart is the predicted light curve
(visual magnitude as a function of time) of Asteroid 7 Iris,
according to the most recent ephemerides data.
Magnitude data is sampled with a 2 days interval and there might be inaccuracies
for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies
between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Asteroid 7 Iris between
January 2013 and December 2100

The rise and set times are defined as the time at which the upper limb of Asteroid 7 Iris touches the horizon,
consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the
times reported here should be considered correct with an approximation of few minutes.

Visualization of Asteroid 7 Iris Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows
the orbit of Asteroid 7 Iris with respect of the Sun and the orbits of the major planets.
The position of Asteroid 7 Iris and the planets along their orbits in this diagram accurately represents the current configuration
of the objects in the Solar System.
This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Asteroid 7 Iris Physical Data

The following shows the known values of the most important physical parameters of Asteroid 7 Iris.
Source: JPL Small-Body Database

Physical Parameter

Value

Relative to Earth

Diameter

199.83 km

0.0157

Sideral Rotation

7.1390 hours

0.2983

Absolute Magnitude

5.51

Geometric Albedo

0.2766

Asteroid 7 Iris 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 7 Iris computed for the past and next 7 days, with a 24 hours interval.
Click on each row of the table to locate Asteroid 7 Iris in our Online Planetarium
at the chosen date.